| NFM | neurofilament protein, medium polypeptide |
|---|---|
| NNN | Novy-MacNeal-Nicolle [medium] |
| NSM | neurosecretory material; neurosecretory motor neuron; nonantigenic specific mediator; nutrient sporu... |
| NYC | New York City [medium] |
| OADC | oleate-albumin-dextrose-catalase [medium] |